Multiple Choice
The blastocyst implants in the uterus on about the ________ day of the 28 day menstrual cycle.At this time,the endometrium is ________ and progesterone levels are _______.
A) 21st; thick and secretory; high
B) 28th; thick and secretory; low
C) 14th; thick and secretory; low
D) 7th; thin and proliferating; high
E) 1st; thin and proliferating; low
Correct Answer:

Verified
Correct Answer:
Verified
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